摘要
基于TSMC 0.18μm RF CMOS工艺采用共源共栅结构设计了一款低噪声放大器(low-noise amplifier,LNA),用于接收GPS L1频段信号和BDS B1频段信号的导航接收机中。通过合理选择器件参数,减小了系统噪声性能并提高了系统的线性度。利用Cadence软件中Spectre对电路进行仿真。结果表明,LNA在1.8V电源电压下,功耗仅为3.78mW。功率增益为13.29dB,输入输出回波损耗均小于-20dB,反向隔离度S12为-49.21dB,噪声系数(noise figure,NF)为0.46dB,输入1dB压缩点为-12.20dBm,三阶交调点为-6.62dBm。
In this paper, a low-noise amplifier （LNA） was designed using cascode structure based on the TSMC 0.18μm RF CMOS process, which is used to receive the GPS L1 band signal and the BI）S B1 band signal navigation receiver. The system noise is reduced and the linearity of the system is improved by selecting the device parameters reasonably. The circuit is simulated by using Spectre in Cadence, and the power consumption of LNA is only 3.78 mW in the 1.8 V supply voltage. The experimental results are as follows： the power gain is 13.29 dB, input and output return loss is less than -20 dB, the reverse isolation $12 is -49.21 dB, the noise figure （NF） is 0.46 dB, the input 1 dB compres sion point is -12.20 dBm, and the three order intercept point is -6.62 dBm.
作者
尹强
黄海生
李鑫
曹新亮
李东亚
YIN Qiang;HUANG Hai-sheng;LI Xin;CAO Xin-liang;LI Dong-ya(School of Electronic Engineering,Xi＇ an University of Posts and Telecommunications,Xi＇ an 710121,China;School of Physics and Electronic Information,Yan＇ an University,Yan＇ an 716000,China)
出处
《武汉理工大学学报》
CAS
北大核心
2017年第6期89-94,共6页
Journal of Wuhan University of Technology
基金
国家自然基金-地区科学基金(61661049)
陕西省科技统筹创新工程计划战略新兴产业重大产品(群)项目(2014KTCQ01-21)
关键词
低噪声放大器
射频前端
低功耗
CMOS工艺
low-noise amplifier
RF front-end
low power consumption
CMOS technology
